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【判断题】
若X,Y均服从正态分布,则(X,Y)也服从正态分布。 ( )A.
正确
B.
错误
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举一反三
【单选题】If you traveled on one of the nation's Interstates in these last few days before Memorial Day, you might have encountered an unusual sight bikers by the dozens stretched half a mile down the highway, ...
A.
it was a nationwide network of veterans and their supporters founded in 1987 that affiliated to Rolling Thunder National.
B.
It was an organization founded in 1995 that works year-round for veterans' fights.
C.
It was named Rolling Thunder because masses of bikes descending on Washington would literally sound like Rolling Thunder.
D.
It was named Rolling Thunder because it was the code name for the bombing campaign over North Vietnam during the Vietnam war.
【单选题】听力原文： Have you ever traveled on any of the giant jet airplanes? If you have not been a passenger on one of these planes, try to imagine a jet which is more than 70 meters long and more than 5 stories ...
A.
6 million dollars.
B.
25 million dollars.
C.
70 million dollars.
D.
400 million dollars.
【单选题】在 Windows7中,“写字板”和“记事本”软件所编辑的文档( )
A.
均可通过剪切、复制和粘贴与其他Windows应用程序交换信息
B.
只有写字板可通过剪切、复制和粘贴与其他Windows应用程序交换信息
C.
只有记事本可通过剪切、复制和粘贴与其他Windows应用程序交换信息
D.
两者均不能与其他Windows应用程序交换信息
【单选题】Passports If you've ever traveled outside the United States, one of the most important tasks you had to complete before your trip was applying for a passport. A copy of your original birth certificate...
A.
Y
B.
N
C.
NG
【单选题】在Windows中,"写字板"和"记事本"软件所编辑的文档
A.
均可通过剪切、复制和粘贴与其他Windows应用程序交换信息
B.
只有写字板可通过剪切、复制和粘贴操作与其他Windows应用程序交换信息
C.
只有记事本可通过剪切、复制和粘贴操作与其他Windows应用程序交换信息
D.
两者均不能与其他Windows应用程序交换信息
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